CN104638744A - Battery pack articulated circuit of constant power supply and constant power supply - Google Patents
Battery pack articulated circuit of constant power supply and constant power supply Download PDFInfo
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- CN104638744A CN104638744A CN201310554196.4A CN201310554196A CN104638744A CN 104638744 A CN104638744 A CN 104638744A CN 201310554196 A CN201310554196 A CN 201310554196A CN 104638744 A CN104638744 A CN 104638744A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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Abstract
The invention discloses a battery pack articulated circuit of a constant power supply and the constant power supply which are capable of improving the soft configuration capability of the number of batteries of the battery pack. The battery pack articulated circuit comprises a first inductor, a second inductor, a first switch tube unit, a second switch tube unit and a third switch tube unit; the positive electrode of the battery pack, one end of the first inductor and the first and third ends of the second switch tube unit are connected; the negative electrode of the battery pack, one end of the second inductor and the second and third ends of the first switch tube unit are connected; the other end of the first inductor, the first end of the first switch tube unit and the second and third ends of the third switch tube unit are connected; the first end of the third switch tube unit serves as the positive electrode terminal of a direct current bus of the constant power supply; the other end of the second inductor is connected to the second end of the second switch tube unit, and the connected connection terminal serves a negative electrode terminal of the direct current bus.
Description
Technical field
The present invention relates to electric and electronic technical field, particularly relate to a kind of batteries mounting circuit and uninterrupted power supply of uninterrupted power supply.
Background technology
Uninterrupted power supply (Uninterruptible Power Supply, UPS) the various occasion higher to power supply reliability requirement is widely used in, when civil power occurs abnormal, the voltage of the batteries of uninterrupted power supply is supplied to DC bus after booster circuit, to ensure normal DC bus-bar voltage, and then realize continuing as load supplying.
But, the batteries of uninterrupted power supply is in series by multiple storage battery, when one of them accumulator failure, can battery damage be accelerated because new and old storage battery is mixed, so under normal circumstances, the replacing of trouble accumulator can not be carried out, only that trouble accumulator is removed, continue series connection by the storage battery of other non-fault to use, now, the voltage of batteries will step-down.Visible, if the boosting gain of the booster circuit of batteries is higher, then the voltage of the batteries allowed can be lower, and in batteries, the flexible configuration ability of storage battery quantity is stronger.
In prior art, the mounting mode of the batteries of uninterrupted power supply as shown in Figure 1, the positive pole of batteries BAT is connected to the tie point of civil power input switch S1 and power factor correction inductance L pfc by branch switch S2, the negative pole of batteries BAT is connected to the negative pole of DC bus in uninterrupted power supply, switching tube unit Q11 ~ Q16 constitutes single-phase three bridge arm voltage converters, and each brachium pontis comprises two switching tube unit respectively.Wherein, switching tube unit is specifically as follows the switching tube with diode, such as, have the metal-oxide-semiconductor of parasitic diode, be integrated with the IGBT etc. of diode, also can be the inverse parallel switching tube of diode, the such as inverse parallel IGBT etc. of diode.
When being powered by batteries BAT, civil power input switch S1 disconnects, and branch switch S2 closes, and utilizes the diode in power factor correction inductance L pfc, switching tube unit Q11, switching tube unit Q12 can form basic booster circuit.But the boosting gain of this basic booster circuit is only
d is the duty ratio of the PWM wave voltage that namely control signal of switching tube unit Q12 inputs, when the voltage of batteries BAT is lower, the duty ratio of the PWM wave voltage of switching tube unit Q12 input must be increased to improve circuit boosting gain, the voltage requirements of DC bus could be met, and when duty ratio is excessive, the efficiency of this basic booster circuit is lower, therefore, for ensureing circuit efficiency, usually there is strict requirement to the voltage drop amplitude of batteries BAT, thus limit the flexible configuration ability of storage battery quantity.
Summary of the invention
The embodiment of the present invention provides a kind of batteries mounting circuit and uninterrupted power supply of uninterrupted power supply, the problem that the flexible configuration ability in order to solve storage battery quantity in batteries is poor.
The embodiment of the present invention provides a kind of batteries mounting circuit of uninterrupted power supply, comprises the first inductance, the second inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit, wherein:
First end three end of the positive pole of batteries, one end of the first inductance, second switch pipe unit is connected;
Second end three end of the negative pole of batteries, one end of the second inductance, the first switching tube unit is connected;
Second end three end of the other end of the first inductance, the first end of the first switching tube unit, the 3rd switching tube unit is connected;
The first end of the 3rd switching tube unit is as the positive terminal of DC bus in uninterrupted power supply;
The other end of the second inductance is connected with the second end of second switch pipe unit, and the link after being connected is as the negative terminals of described DC bus.
The embodiment of the present invention also provides a kind of batteries mounting circuit of uninterrupted power supply, comprises the first inductance, the second inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit, wherein:
First end three end of the positive pole of batteries, one end of the first inductance, second switch pipe unit is connected;
Second end three end of the negative pole of batteries, one end of the second inductance, the first switching tube unit is connected;
The other end of the first inductance is connected with the first end of the first switching tube unit, and the link after being connected is as the positive terminal of DC bus in uninterrupted power supply;
First end three end of the other end of the second inductance, the second end of second switch pipe unit, the 3rd switching tube unit is connected;
Second end of the 3rd switching tube unit is as the negative terminals of described DC bus.
The embodiment of the present invention also provides a kind of batteries mounting circuit of uninterrupted power supply, comprises coupling inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit with the first winding and the second winding, wherein:
One end of the positive pole of batteries, the first winding of coupling inductance, first end three end of second switch pipe unit are connected;
One end of the negative pole of batteries, the second winding of coupling inductance, the second end three end of the first switching tube unit are connected;
Second end three end of the other end of the first winding of coupling inductance, the first end of the first switching tube unit, the 3rd switching tube unit is connected;
The first end of the 3rd switching tube unit is as the positive terminal of DC bus in uninterrupted power supply;
The other end of the second winding of coupling inductance is connected with the second end of second switch pipe unit, and the link after being connected is as the negative terminals of described DC bus;
One end that first winding of coupling inductance is connected with second switch pipe unit, the one end be connected with second switch pipe unit with the second winding of coupling inductance is Same Name of Ends.
The embodiment of the present invention also provides a kind of batteries mounting circuit of uninterrupted power supply, comprises coupling inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit with the first winding and the second winding, wherein:
One end of the positive pole of batteries, the first winding of coupling inductance, first end three end of second switch pipe unit are connected;
One end of the negative pole of batteries, the second winding of coupling inductance, the second end three end of the first switching tube unit are connected;
The other end of the first winding of coupling inductance is connected with the first end of the first switching tube unit, and the link after being connected is as the positive terminal of DC bus in uninterrupted power supply;
First end three end of the other end of the second winding of coupling inductance, the second end of second switch pipe unit, the 3rd switching tube unit is connected;
Second end of the 3rd switching tube unit is as the negative terminals of described DC bus;
One end that first winding of coupling inductance is connected with second switch pipe unit, the one end be connected with second switch pipe unit with the second winding of coupling inductance is Same Name of Ends.
The embodiment of the present invention also provides a kind of uninterrupted power supply, comprises above-mentioned arbitrary described batteries mounting circuit.
Beneficial effect of the present invention comprises:
In the scheme that the embodiment of the present invention provides, when being powered by batteries, a booster circuit is constituted by the diode in the first inductance, the second inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit, and compared to this booster circuit of prior art, there is higher boosting gain, therefore the voltage of batteries allows lower, namely in batteries, storage battery quantity allows less, improves the flexible configuration ability of storage battery quantity.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, is not construed as limiting the invention with the embodiment of the present invention one.In the accompanying drawings:
Fig. 1 is the batteries mounting circuit diagram of uninterrupted power supply of the prior art;
The batteries mounting circuit diagram of the uninterrupted power supply that Fig. 2 provides for the embodiment of the present invention 1;
The batteries mounting circuit diagram of the uninterrupted power supply that Fig. 3 provides for the embodiment of the present invention 2;
The batteries mounting circuit diagram of the uninterrupted power supply that Fig. 4 provides for the embodiment of the present invention 3;
The batteries mounting circuit diagram of the uninterrupted power supply that Fig. 5 provides for the embodiment of the present invention 4;
The schematic diagram of the uninterrupted power supply that Fig. 6 provides for the embodiment of the present invention 5.
Embodiment
In order to provide improve uninterrupted power supply batteries in the implementation of flexible configuration ability of storage battery quantity, embodiments provide a kind of batteries mounting circuit and uninterrupted power supply of uninterrupted power supply, below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein, only for instruction and explanation of the present invention, is not intended to limit the present invention.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment 1:
The embodiment of the present invention 1 provides a kind of batteries mounting circuit of uninterrupted power supply, as shown in Figure 2, comprises the first inductance L 1, second inductance L 2, first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3, wherein:
First end three end of the positive pole of batteries BAT, one end of the first inductance L 1, second switch pipe unit Q2 is connected;
Second end three end of the negative pole of batteries BAT, one end of the second inductance L 2, the first switching tube unit Q1 is connected;
Second end three end of the other end of the first inductance L 1, the first end of the first switching tube unit Q1, the 3rd switching tube unit Q3 is connected;
The first end of the 3rd switching tube unit Q3 is as the positive terminal of DC bus in uninterrupted power supply;
The other end of the second inductance L 2 is connected with second end of second switch pipe unit Q2, and the link after being connected is as the negative terminals of this DC bus.
Wherein, first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 are specifically as follows the switching tube with diode, such as there is the metal-oxide-semiconductor of parasitic diode, be integrated with the IGBT etc. of diode, also can be the inverse parallel switching tube of diode, the such as inverse parallel IGBT etc. of diode.
And, the first end of the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 is specially one end corresponding to the negative electrode of diode in corresponding switching tube unit, and second end of the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 is specially one end corresponding to the anode of diode in corresponding switching tube unit.
Such as, when the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 are specially the metal-oxide-semiconductor with parasitic diode, one end of the drain electrode correspondence of one end that the negative electrode of diode is corresponding and metal-oxide-semiconductor is as the first end of corresponding switching tube unit, one end corresponding to the source electrode of one end that the anode of diode is corresponding and metal-oxide-semiconductor is as the second end of corresponding switching tube unit, and the grid of metal-oxide-semiconductor is as the control end of corresponding switching tube unit.
Again such as, when the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 are specially the IGBT of inverse parallel diode, one end corresponding to the collector electrode of one end that the negative electrode of diode is corresponding and IGBT is as the first end of corresponding switching tube unit, one end corresponding to the emitter of one end that the anode of diode is corresponding and IGBT is as the second end of corresponding switching tube unit, and the base stage of IGBT is as the control end of corresponding switching tube unit.
Above-mentioned batteries mounting circuit is applicable to the uninterrupted power supply adopting various voltage changer, is not limited to the uninterrupted power supply of the single-phase three bridge arm voltage converters of employing shown in Fig. 2.
In order to further illustrate the batteries mounting circuit of the uninterrupted power supply that the embodiment of the present invention 1 provides, below its operation principle is set forth.
Normal at civil power, when being powered by civil power, civil power input switch S1 closes, and carries out voltage transformation by voltage changer, and stable voltage can be provided to export.Now, can to the control end input PWM wave voltage of the 3rd switch element Q3, control the 3rd switching tube unit Q3 copped wave, utilizing the diode in the 3rd switching tube unit Q3, the first switching tube unit Q1, the diode in second switch pipe unit Q2, the first inductance L 1, second inductance L 2 to form reduction voltage circuit, is batteries BAT charging.
City's electrical anomaly, powered by batteries BAT time, the rectification unit controlling voltage changer in uninterrupted power supply quits work, the inversion unit of voltage changer works on, civil power input switch S1 disconnects, identical PWM wave voltage is inputted to the control end of the first switching tube unit Q1 and the control end of second switch pipe unit Q2, control the first switching tube unit Q1 and second switch pipe unit Q2 copped wave, conducting simultaneously, shutoff.When the first switching tube unit Q1 and second switch pipe unit Q2 conducting simultaneously, the first inductance L 1 can by the first switching tube unit Q1 energy storage of conducting, and the second inductance L 2 can by the second switch pipe unit Q2 energy storage of conducting; When the first switching tube unit Q1 and second switch pipe unit Q2 turns off simultaneously, the first inductance L 1 and the second inductance L 2 are connected, by the diode in the 3rd switching tube unit Q3 be uninterrupted power supply DC bus between electric capacity C1 charge, ensure DC bus-bar voltage.
Visible, when being powered by batteries BAT, diode in first inductance L 1, second inductance L 2, first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 constitutes the booster circuit of an enhancement mode, and the boosting gain of the booster circuit of this enhancement mode is
d is the duty ratio of the PWM wave voltage that namely control signal of the first switching tube unit Q1 and second switch pipe unit Q2 inputs, therefore compared to prior art, the batteries mounting circuit of the uninterrupted power supply that the embodiment of the present invention 1 provides allows the voltage of batteries lower, namely allow storage battery quantity in batteries less, improve the flexible configuration ability of storage battery quantity.
Embodiment 2:
The embodiment of the present invention 2 additionally provides a kind of batteries mounting circuit of uninterrupted power supply, has converted the position of the 3rd switching tube in the batteries mounting circuit shown in above-described embodiment 1 Fig. 2.
The batteries mounting circuit that the embodiment of the present invention 2 provides as shown in Figure 3, comprises the first inductance L 1, second inductance L 2, first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3, wherein:
First end three end of the positive pole of batteries BAT, one end of the first inductance L 1, second switch pipe unit Q2 is connected;
Second end three end of the negative pole of batteries BAT, one end of the second inductance L 2, the first switching tube unit Q1 is connected;
The other end of the first inductance L 1 is connected with the first end of the first switching tube unit Q1, and the link after being connected is as the positive terminal of DC bus in uninterrupted power supply;
First end three end of the other end of the second inductance L 2, second end of second switch pipe unit Q2, the 3rd switching tube unit Q3 is connected;
Second end of the 3rd switching tube unit Q3 is as the negative terminals of this DC bus.
Wherein, the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 are specifically as follows the switching tube with diode, also can be the inverse parallel switching tube of diode; And, the first end of the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 is specially one end corresponding to the negative electrode of diode in corresponding switching tube unit, and second end of the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 is specially one end corresponding to the anode of diode in corresponding switching tube unit.
The operation principle that the operation principle of the batteries mounting circuit that the embodiment of the present invention 2 provides mounts circuit with the batteries that above-described embodiment 1 provides is identical, does not repeat them here.
Embodiment 3:
The embodiment of the present invention 3 additionally provide a kind of uninterrupted power supply batteries mounting circuit, use coupling inductance substitute shown in above-described embodiment 1 Fig. 2 batteries mounting circuit in the first inductance and the second inductance.
Batteries that the embodiment of the present invention 3 provides mounting circuit as shown in Figure 4, comprise there is the first winding and the second winding coupling inductance L, the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3, wherein:
One end of the positive pole of batteries BAT, first winding of coupling inductance L, first end three end of second switch pipe unit Q2 are connected;
One end of the negative pole of batteries BAT, second winding of coupling inductance L, second end three end of the first switching tube unit Q1 are connected;
Second end three end of the other end of first winding of coupling inductance L, the first end of the first switching tube unit Q1, the 3rd switching tube unit Q3 is connected;
The first end of the 3rd switching tube unit Q3 is as the positive terminal of DC bus in uninterrupted power supply;
The other end of second winding of coupling inductance L is connected with second end of second switch pipe unit Q2, and the link after being connected is as the negative terminals of this DC bus;
One end that first winding of coupling inductance L is connected with second switch pipe unit Q2, the one end be connected with second switch pipe unit Q2 with second winding of coupling inductance L is Same Name of Ends.
Wherein, the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 are specifically as follows the switching tube with diode, also can be the inverse parallel switching tube of diode; And, the first end of the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 is specially one end corresponding to the negative electrode of diode in corresponding switching tube unit, and second end of the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 is specially one end corresponding to the anode of diode in corresponding switching tube unit.
First winding of coupling inductance L is specifically as follows the former limit winding of coupling inductance L, and the second winding is vice-side winding; First winding of coupling inductance L also can be specifically the vice-side winding of coupling inductance L, and the second winding is former limit winding.
In the batteries mounting circuit that the embodiment of the present invention 3 provides, second winding of the first inductance L 1, coupling inductance L that first winding of coupling inductance L is equivalent in the batteries mounting circuit that above-described embodiment 1 provides is equivalent to the second inductance L 2 in the batteries mounting circuit that above-described embodiment 1 provides.Therefore, the operation principle that the operation principle of the batteries mounting circuit that the embodiment of the present invention 3 provides mounts circuit with the batteries that above-described embodiment 1 provides is identical, does not repeat them here.
And, because coupling inductance can ensure the equilibrium of two windings preferably in the manufacture craft of reality, when practical application, two windings are more balanced, namely above-described embodiment 1 provide batteries mounting circuit in the first inductance and the second inductance more balanced, the efficiency of the booster circuit of enhancement mode is higher.Namely adopt the batteries mounting circuit of the embodiment of the present invention 3 compared to above-described embodiment 1 and embodiment 2, can circuit efficiency be improved.
Embodiment 4:
The embodiment of the present invention 4 additionally provides a kind of batteries mounting circuit of uninterrupted power supply, has converted the position of the 3rd switching tube in the batteries mounting circuit shown in above-described embodiment 3 Fig. 4.
Batteries that the embodiment of the present invention 4 provides mounting circuit as shown in Figure 5, comprise there is the first winding and the second winding coupling inductance L, the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3, wherein:
One end of the positive pole of batteries BAT, first winding of coupling inductance L, first end three end of second switch pipe unit Q2 are connected;
One end of the negative pole of batteries BAT, second winding of coupling inductance L, second end three end of the first switching tube unit Q1 are connected;
The other end of first winding of coupling inductance L is connected with the first end of the first switching tube unit Q1, and the link after being connected is as the positive terminal of DC bus in uninterrupted power supply;
First end three end of the other end of second winding of coupling inductance L, second end of second switch pipe unit Q2, the 3rd switching tube unit Q3 is connected;
Second end of the 3rd switching tube unit Q3 is as the negative terminals of this DC bus;
One end that first winding of coupling inductance L is connected with second switch pipe unit Q2, the one end be connected with second switch pipe unit Q2 with second winding of coupling inductance L is Same Name of Ends.
Wherein, the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 are specifically as follows the switching tube with diode, also can be the inverse parallel switching tube of diode; And, the first end of the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 is specially one end corresponding to the negative electrode of diode in corresponding switching tube unit, and second end of the first switching tube unit Q1, second switch pipe unit Q2 and the 3rd switching tube unit Q3 is specially one end corresponding to the anode of diode in corresponding switching tube unit.
The embodiment of the present invention 5 also provides a kind of uninterrupted power supply, comprise above-mentioned Fig. 2-Fig. 5 arbitrary shown batteries mounting circuit, below to comprise the uninterrupted power supply of the batteries mounting circuit shown in above-mentioned Fig. 2, the uninterrupted power supply that the embodiment of the present invention provides is described.
Embodiment 5:
As shown in Figure 6, voltage changer is specially single-phase three bridge arm voltage converters to the schematic diagram of the uninterrupted power supply that the embodiment of the present invention 5 provides.
Not only comprise three bridge arm voltage converters, batteries mounting circuit in the circuit of this uninterrupted power supply, power factor correction inductance L pfc can also be comprised, in order to realize the adjustment of power factor.
Further, in the circuit of this uninterrupted power supply, electric capacity of voltage regulation C2 can also be comprised, be parallel to the two ends of batteries, in order to keep the stable of batteries port voltage, filtering high-frequency harmonic.
Further, input filter capacitor C3 and output filter capacitor C4 can also be comprised in the circuit of this uninterrupted power supply, respectively in order to the high frequency ripple in filtering input voltage and output voltage.
Further, the first filter inductance L3, the second filter inductance L4 can also be comprised in the circuit of this uninterrupted power supply, in order to the high frequency ripple in further filtering output voltage.
In sum, the batteries mounting circuit of the uninterrupted power supply adopting the embodiment of the present invention to provide and uninterrupted power supply, can improve the flexible configuration ability of storage battery quantity in batteries.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a batteries mounting circuit for uninterrupted power supply, is characterized in that, comprise the first inductance, the second inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit, wherein:
First end three end of the positive pole of batteries, one end of the first inductance, second switch pipe unit is connected;
Second end three end of the negative pole of batteries, one end of the second inductance, the first switching tube unit is connected;
Second end three end of the other end of the first inductance, the first end of the first switching tube unit, the 3rd switching tube unit is connected;
The first end of the 3rd switching tube unit is as the positive terminal of DC bus in uninterrupted power supply;
The other end of the second inductance is connected with the second end of second switch pipe unit, and the link after being connected is as the negative terminals of described DC bus.
2. the batteries mounting circuit as shown in claim 1, it is characterized in that, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit are specially the switching tube with diode, or are the inverse parallel switching tube of diode; The first end of the first switching tube unit, second switch pipe unit and the 3rd switching tube unit is specially one end corresponding to the negative electrode of diode in corresponding switching tube unit, and the second end of the first switching tube unit, second switch pipe unit and the 3rd switching tube unit is specially one end corresponding to the anode of diode in corresponding switching tube unit.
3. a batteries mounting circuit for uninterrupted power supply, is characterized in that, comprise the first inductance, the second inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit, wherein:
First end three end of the positive pole of batteries, one end of the first inductance, second switch pipe unit is connected;
Second end three end of the negative pole of batteries, one end of the second inductance, the first switching tube unit is connected;
The other end of the first inductance is connected with the first end of the first switching tube unit, and the link after being connected is as the positive terminal of DC bus in uninterrupted power supply;
First end three end of the other end of the second inductance, the second end of second switch pipe unit, the 3rd switching tube unit is connected;
Second end of the 3rd switching tube unit is as the negative terminals of described DC bus.
4. batteries mounting circuit as stated in claim 3, it is characterized in that, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit are specially the switching tube with diode, or are the inverse parallel switching tube of diode; The first end of the first switching tube unit, second switch pipe unit and the 3rd switching tube unit is specially one end corresponding to the negative electrode of diode in corresponding switching tube unit, and the second end of the first switching tube unit, second switch pipe unit and the 3rd switching tube unit is specially one end corresponding to the anode of diode in corresponding switching tube unit.
5. a batteries mounting circuit for uninterrupted power supply, is characterized in that, comprise coupling inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit with the first winding and the second winding, wherein:
One end of the positive pole of batteries, the first winding of coupling inductance, first end three end of second switch pipe unit are connected;
One end of the negative pole of batteries, the second winding of coupling inductance, the second end three end of the first switching tube unit are connected;
Second end three end of the other end of the first winding of coupling inductance, the first end of the first switching tube unit, the 3rd switching tube unit is connected;
The first end of the 3rd switching tube unit is as the positive terminal of DC bus in uninterrupted power supply;
The other end of the second winding of coupling inductance is connected with the second end of second switch pipe unit, and the link after being connected is as the negative terminals of described DC bus;
One end that first winding of coupling inductance is connected with second switch pipe unit, the one end be connected with second switch pipe unit with the second winding of coupling inductance is Same Name of Ends.
6. batteries mounting circuit as stated in claim 5, it is characterized in that, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit are specially the switching tube with diode, or are the inverse parallel switching tube of diode; The first end of the first switching tube unit, second switch pipe unit and the 3rd switching tube unit is specially one end corresponding to the negative electrode of diode in corresponding switching tube unit, and the second end of the first switching tube unit, second switch pipe unit and the 3rd switching tube unit is specially one end corresponding to the anode of diode in corresponding switching tube unit.
7. a batteries mounting circuit for uninterrupted power supply, is characterized in that, comprise coupling inductance, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit with the first winding and the second winding, wherein:
One end of the positive pole of batteries, the first winding of coupling inductance, first end three end of second switch pipe unit are connected;
One end of the negative pole of batteries, the second winding of coupling inductance, the second end three end of the first switching tube unit are connected;
The other end of the first winding of coupling inductance is connected with the first end of the first switching tube unit, and the link after being connected is as the positive terminal of DC bus in uninterrupted power supply;
First end three end of the other end of the second winding of coupling inductance, the second end of second switch pipe unit, the 3rd switching tube unit is connected;
Second end of the 3rd switching tube unit is as the negative terminals of described DC bus;
One end that first winding of coupling inductance is connected with second switch pipe unit, the one end be connected with second switch pipe unit with the second winding of coupling inductance is Same Name of Ends.
8. the batteries mounting circuit as shown in claim 7, it is characterized in that, the first switching tube unit, second switch pipe unit and the 3rd switching tube unit are specially the switching tube with diode, or are the inverse parallel switching tube of diode; The first end of the first switching tube unit, second switch pipe unit and the 3rd switching tube unit is specially one end corresponding to the negative electrode of diode in corresponding switching tube unit, and the second end of the first switching tube unit, second switch pipe unit and the 3rd switching tube unit is specially one end corresponding to the anode of diode in corresponding switching tube unit.
9. a uninterrupted power supply, is characterized in that, comprise as arbitrary in claim 1-8 as described in batteries mounting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554196.4A CN104638744B (en) | 2013-11-08 | 2013-11-08 | Battery pack articulated circuit of constant power supply and constant power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310554196.4A CN104638744B (en) | 2013-11-08 | 2013-11-08 | Battery pack articulated circuit of constant power supply and constant power supply |
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| CN104638744A true CN104638744A (en) | 2015-05-20 |
| CN104638744B CN104638744B (en) | 2017-04-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104638744B (en) | 2017-04-19 |
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